نتایج جستجو برای: e coli expression system
تعداد نتایج: 3940018 فیلتر نتایج به سال:
Introduction: Omp31 is animmunodominant and protective antigen conserved in Brucella species and a good candidate for vaccine design. Material & methods: The present study aimed at in silico design of the truncated Omp31 (TOmp31) using bioinformatic tools and to express the selected form in Escherichia coli (E. coli) Results and conclusion: Various bioinformatically calculated scores for the ...
The objective of this research was to investigate the influence of the over-expression of recombinant interferon-g during high cell density cultivation on cellular characteristics of recombinant E. coli. Batch and fed-batch culture techniques were employed to grow Escherichia coli BL21 for production of human gamma-interferon in pET expression system. Final cell densities in batch and fed-batch...
avian pathogenic e. coli (apec) is responsible for economic losses in all poultry farms. certain virulence factors have been proposed as a means of controlling apec infections, including some proteins to be used for vaccination. in the study we report here, one of the major virulence factors, the iss (increased serum survival) gene, from e. coli strain χ1378, isolated from poultry colibacillosi...
the human granulocyte-macrophage colony stimulation factor (hgm-csf) gene was cloned in the pet 23a( +) expression vector under the control of strong bacteriophage t7 transcription and translation signals. the hgm-csf gene was transferred into e. coli strainbl21 (de3)plyss andiptg was used for induction of gm-csf gene. production of the target protein was obtained as revealed by elisa and weste...
background: the advent of recombinant dna technology has facilitated heterologous expression of proteins from various sources in different host systems including escherichia coli. if a plant virus coat protein is expressed in the bacterium it can be used as the antigen for antibody preparation. such a recombinant antigen preparation can be particularly useful where equipment such as ultracentri...
for high-throughput production of recombinant protein in escherichia coli ( e. coli ), besides important parameters such as efficient vector with strong promoter and compatible host, other important issues including codon usage, rare codons, and gc content specially at n-terminal region should be considered. in the current study, the effect of decreasing the percentage of gc nucleotides and opt...
In this study, our previously reported novel synthetic gene encoding 166 residues of interferon-? was used for an efficient expression of IFN-?. The synthetic gene was cloned into pET21a expression vector and transferred into E. coli. Recombinant protein was over-expressed in the E. coli. Identity of the recombinant protein was confirmed by western blot analysis. The recombinant protein was bio...
background: cholera toxin b subunit (ctb) has been extensively considered as an immunogenic and adjuvant protein, but its yield of expression is not satisfactory in many studies. the aim of this study was to compare the expression of native and mutant recombinant ctb (rctb) in pqe vector. methods: ctxb fragment from vibrio cholerae o1 atcc14035 containing the substitution of mutant ctxb for ami...
conclusions over-expression of the synthetic cpc/β protein in the bacterial system (escherichia coli bl-21) showed that e. coli can be used as a basis for further research to produce this desired protein in large quantities. results the sds-page analysis and dot blotting confirmed the production of recombinant c-pc/β in the bacterial expression system. over-expression of cpcb gene was optimized...
Background: Cholera toxin B subunit (CTB) has been extensively considered as an immunogenic and adjuvant protein, but its yield of expression is not satisfactory in many studies. The aim of this study was to compare the expression of native and mutant recombinant CTB (rCTB) in pQE vector. Methods: ctxB fragment from Vibrio cholerae O1 ATCC14035 containing the substitution of mutant ctxB for ami...
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